Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a deadlock in l2capconndel. The l2capconndel function calls canceldelayedworksync for both infotimer and idaddrtimer while holding conn-lock. However, the functions l2capinfotimeout and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: Add GFPNOIO to the bio completion if necessary. The bio completion path in the process context e.g., dm-verity will directly call into decompression instead of triggering another workqueue context for minimal scheduling...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix multiple LUNRESET handling This fix addresses a bug where the initiator assumes that a LUNRESET has cleaned up running commands, when in fact it hasn’t. The bug was introduced in commit 51ec502a3266 “target:...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed to avoid potential deadlocks. The function f2fstrylockop was used in f2fswritecompressedpages to prevent potential deadlocks, just as we did in f2fswritesingledatapage...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Synchronize interrupts before suspending the GPU. The runtime PM suspend callback does not know whether the IRQ handler is in progress on a different CPU core and therefore does not wait for it to finish. Dependi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: phy: Transfer phyconfiginband has the responsibility of acquiring &phylink Problem description =================== Lockdep reports a possible circular locking dependency AB/BA between &pl-statemutex and &phy-lock, as follows...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - Block: Fixed the issue where queues could freeze, compared to the lock order in sysfs store methods. The queueattrstore method always freezes a device queue before calling the attribute store operation. For attributes that...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Do not hold the layoutget locks across multiple RPC calls When performing layoutget as part of the open compound, we must be careful to release the layout locks before calling any further RPC calls, such as setattr. The...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: usb: cdnsp: Fixed a deadlock issue in cdnspthreadirqhandler. The patch fixes the following critical issue caused by deadlock, which was detected during testing of the NCM class: - smp: csd: A non-responsive CSD lock 1 was...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fixed a deadlock during uvcprobe If uvcprobe fails, it may end up calling uvcstatusunregister before uvcstatusinit is called. This issue was fixed by checking whether dev-status is NULL during uvcstatusunregister...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fixed a deadlock that occurred when hugetlboptimizevmemmap was enabled. When I performed hard offline tests with hugetlb pages, a deadlock occurred as follows:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: In the zone operation, the code must traverse devices under the chunkmutex in btrfscanactivatezone. The btrfscanactivatezone function can be called with the devicelistmutex already held, which could lead to a deadlock. ...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fixed a deadlock in rtllibbeaconsstop. There is a deadlock in rtllibbeaconsstop, as shown below: Thread 1 | Thread 2 | rtllibsendbeacon rtllibbeaconsstop | modtimer spinlockirqsave //1 | Wait for a whi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: The block operation involving GFPNOIO around the sysfs-store function. The sysfs-store function is called with the queue frozen. Meanwhile, there are several -store callbacks such as updatenrrequests, wbt, scheduler that use...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the md subsystem, there was a issue where the “activeio” value was not properly released after the submitflushes function was called. This caused the “activeio” value to remain unreleased, leading to a situation where...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: Use spinlockirqsave in adjustinuseandcalccost. The adjustinuseandcalccost function uses spinlockirq, and IRQ will be enabled when unlocking. A DEADLOCK may occur if other locks are held and IRQs are disabled before...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the net, neigh module, do not trigger immediate probes on NUDFAILED from neighmanagedwork. The syzkaller was able to trigger a deadlock for NTFMANAGED entries: - kworker/0:16/14617 is trying to acquire a lock: fffffffff8d4dd37...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cfg80211: fixed a race condition in the netlink owner interface destruction process. My previous fix to address this issue created a deadlock situation, and there was a race condition where the exact same deadlock could occur...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: i2c: lpi2c: Avoid calling clkgetrate during transfer Instead of repeatedly calling clkgetrate for each transfer, lock the clock rate and cache the value. A deadlock was observed when adding the tlv320aic32x4 audio codec to the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Block layer: Fixed a deadlock between bdlinkdiskholder and partitionscan. The openmutex of gendisk is used to protect the opening and closing of block devices. However, in bdlinkdiskholder, it is used to protect the creation of...